vRouteInterfaceEchoReturnLoss 1.3.6.1.4.1.562.2.4.1.116.3.10.1.11

This attribute specifies the echo return loss parameter of the echo canceller. 0 db is the normal value for most line conditions. If the line quality is poor, in terms of echo, selecting a higher value may allow the echo canceller to perform better. A side effect is that the voice level is attenuated by the same amount, which may not always be acceptable. This attribute is not used on DS1V, E1V, 1pDS1V, 1pE1V, J2MV, 1pE1Mvp, 1pDS1Mvp, or 1pTTC2mMvp card.